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ICertificatePolicy Interface

Validates a server certificate.

Namespace:  System.Net
Assembly:  System (in System.dll)

type ICertificatePolicy =  interface end

The ICertificatePolicy type exposes the following members.

  NameDescription
Public methodCheckValidationResultValidates a server certificate.
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The ICertificatePolicy interface is used to provide custom security certificate validation for an application. The default policy is to allow valid certificates, as well as valid certificates that have expired. To change this policy, implement the ICertificatePolicy interface with a different policy, and then assign that policy to ServicePointManager.CertificatePolicy.

ICertificatePolicy uses the Security Support Provider Interface (SSPI). For more information, see the SSPI documentation on MSDN.

The following example creates a certificate policy that returns false for any certificate problem and prints a message that indicates the problem on the console. The CertificateProblem enum defines SSPI constants for certificate problems, and the private GetProblemMessage method creates a printable message about the problem.

No code example is currently available or this language may not be supported.

.NET Framework

Supported in: 4.6, 4.5, 4, 3.5, 3.0, 2.0, 1.1, 1.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

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